Hi, thanks for your interest in how we calculate an experience's ranking score. It's at the core of Rankers so I'm pleased you're curious.
The ranking score percentage is used to compare and sort experiences in ranking tables. It is not necessarily a direct measurement of the quality of a particular experience as rated by its customers. I've found it a useful tool to allow me to find the best experiences with confidence. But I've also found it important to read the customer reviews before making any final judgements!
We calculate an experience's ranking score using a multi-factor data model instead of a raw data average (mean). This model takes into account several important questions. For instance - is there a trusted body of reviews? What is the age of a review and is the review from a credible source?
Below you'll find details around some of the important factors that went into calculating the ranking score for Skyline Luge Rotorua.
If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz. We don't believe this is perfect or complete so we're always interested in ways we might make improvements.
Skyline Luge Rotorua
Valid Reviews
145 Valid Reviews
The Skyline Luge Rotorua experience has a total of 146 reviews. There are 145 valid reviews that are included when calculating the ranking score and 1 invalid review that are excluded from the calculation. Reviews can be excluded only when a reviewer is not verified or after an investigation by our team determines the reviewer is not genuine.
Below is the distribution of ratings for the 145 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 40 |
|
28% |
| 9/10 | 47 |
|
32% |
| 8/10 | 36 |
|
25% |
| 7/10 | 17 |
|
12% |
| 6/10 | 3 |
|
2% |
| 5/10 | 1 |
|
1% |
| 4/10 | 1 |
|
1% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
86.69% Average
The raw data average (mean) for all the Skyline Luge Rotorua valid reviews is 86.69% and is based on 145 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
Face-to-Face Reviews
121 Face-to-Face Reviews
The Rankers team meets with travellers while they’re in New Zealand and conducts face-to-face surveys. These reviews, in our opinion, are the most trusted in the industry and represent a critical control sample. To our knowledge, we are the only travel review website in the world that has gone to this extent.
More about face-to-face reviews
Within the 145 valid reviews, the experience has 121 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 121 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 31 |
|
26% |
| 9/10 | 38 |
|
31% |
| 8/10 | 34 |
|
28% |
| 7/10 | 13 |
|
11% |
| 6/10 | 3 |
|
2% |
| 5/10 | 1 |
|
1% |
| 4/10 | 1 |
|
1% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
86.12% Average
The raw data average (mean) for all the Skyline Luge Rotorua face-to-face reviews is 86.12% and is based on 121 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
87.13%
Rankers calculates a weighted mean as a base average on which we can improve. Individual review's ratings are given a weight based on several factors. The weight of a review determines the overall impact it'll have on the final weighted average.
Recent reviews have more weight as they are more relevant and reflect the experience as it currently operates. Over time reviews become less relevant and loose their impact on the ranking score.
Low rating reviews carry slightly less weight. This dampens the effect of very low ratings for every experience across the board. This is especially important when the experience has few reviews overall and a single negative rating can grossly mischaracterise an experience. Consistent poor reviews will still result in the experience receiving a comparitively low ranking score.
Credible sources provide reviews that can be trusted. If we have verified a reviewer is genuine via a face-to-face meeting then the review carries additional weight.
| Reviewer | Rating | Age | Relative Weight |
|---|---|---|---|
| Christian Paaske | 7/10 | 3368 days | 96% |
| Natasha Startup | 9/10 | 3400 days | 100% |
| Andy | 9/10 | 3405 days | 99% |
| Toby | 10/10 | 3411 days | 100% |
| Micha Kuster | 10/10 | 3469 days | 91% |
| Tim | 8/10 | 3485 days | 85% |
| Jendrik | 8/10 | 3485 days | 85% |
| Alice Frater | 7/10 | 3492 days | 77% |
| Jade Williams | 10/10 | 3505 days | 85% |
| Cora | 9/10 | 3746 days | 46% |
| Lauren Dinnage | 10/10 | 3754 days | 46% |
| Mike Munzenmaier | 9/10 | 3761 days | 44% |
| Matt Irwin | 8/10 | 3764 days | 42% |
| Annalies Beard | 8/10 | 3764 days | 42% |
| Laura Schafer | 9/10 | 3772 days | 42% |
| D Davey | 10/10 | 3781 days | 42% |
| Kirsten Gehrenbeck | 6/10 | 3783 days | 28% |
| Lucile Souday | 10/10 | 3792 days | 40% |
| Lisa Kalkert | 10/10 | 3793 days | 40% |
| David | 10/10 | 3793 days | 40% |
| Philip Piel | 9/10 | 3793 days | 39% |
| Miro | 6/10 | 3793 days | 27% |
| Chiara | 9/10 | 3793 days | 39% |
| Sabine Bergen | 9/10 | 3796 days | 38% |
| Annika Locker | 10/10 | 3799 days | 39% |
| Jess | 8/10 | 3830 days | 32% |
| Lilli Erni | 9/10 | 4463 days | 27% |
| Franz Birkefeld | 9/10 | 4464 days | 27% |
| Laina Black | 7/10 | 4484 days | 22% |
| Ricky White | 9/10 | 4484 days | 27% |
| Jennifer Garner | 9/10 | 4498 days | 27% |
| Philip Donachie | 10/10 | 4501 days | 28% |
| Klaus Petersen | 7/10 | 4503 days | 22% |
| Matthew Trezise | 10/10 | 4504 days | 28% |
| Lorraine Doyle | 10/10 | 4836 days | 28% |
| Lisa Blake | 9/10 | 4956 days | 27% |
| Jenben | 10/10 | 4970 days | 28% |
| David | 7/10 | 4970 days | 22% |
| Nikita Sue | 8/10 | 5237 days | 26% |
| Darren Ronchetti | 10/10 | 5240 days | 28% |
| Asha | 9/10 | 5275 days | 27% |
| Helen & Laurence | 9/10 | 5313 days | 27% |
| kirribilliangel | 10/10 | 5397 days | 28% |
| Dave van Bergen | 9/10 | 5545 days | 27% |
| Guult Ryan | 10/10 | 5567 days | 28% |
| Claire Colquhoun | 8/10 | 5568 days | 26% |
| Andy Johnson | 10/10 | 5572 days | 28% |
| Leanne Shepherd | 8/10 | 5573 days | 26% |
| Chris White | 10/10 | 5588 days | 28% |
| Jane & Regis | 7/10 | 5597 days | 22% |
| Invictus | 8/10 | 5762 days | 26% |
| craigy | 7/10 | 5793 days | 22% |
| Rob | 8/10 | 5863 days | 26% |
| David | 7/10 | 5879 days | 22% |
| Alzbeta Czech | 10/10 | 5960 days | 28% |
| Becky | 8/10 | 5967 days | 26% |
| Amer | 9/10 | 5971 days | 27% |
| Greg Gerritz | 8/10 | 5973 days | 26% |
| Chance McGuire | 10/10 | 5974 days | 28% |
| Hailey & Fin | 8/10 | 5986 days | 26% |
| pedawrds | 10/10 | 6025 days | 28% |
| thomash | 10/10 | 6030 days | 28% |
| asiacritics | 7/10 | 6036 days | 22% |
| Bue Verrept | 8/10 | 6043 days | 26% |
| canadianislandgirl | 7/10 | 6066 days | 22% |
| Ash Sturm | 9/10 | 6066 days | 27% |
| wileyman | 9/10 | 6097 days | 27% |
| clairet | 9/10 | 6145 days | 27% |
| ToryL | 9/10 | 6158 days | 27% |
| muriellef | 7/10 | 6162 days | 22% |
| katesh | 10/10 | 6235 days | 28% |
| caroldarren | 10/10 | 6280 days | 28% |
| Jake1 | 9/10 | 6282 days | 27% |
| HanT | 8/10 | 6290 days | 26% |
| Yvanna | 8/10 | 6299 days | 26% |
| EmmaL | 8/10 | 6313 days | 26% |
| AnthonyB1 | 8/10 | 6314 days | 26% |
| kiwibrit86 | 9/10 | 6324 days | 27% |
| Matt | 10/10 | 6329 days | 28% |
| SuenSwitzerland | 9/10 | 6339 days | 27% |
| Carolyn | 9/10 | 6342 days | 27% |
| Marcus | 8/10 | 6342 days | 26% |
| Kirsty | 10/10 | 6344 days | 28% |
| Fam | 9/10 | 6348 days | 27% |
| Hayley | 8/10 | 6354 days | 26% |
| Debbie Mossman | 9/10 | 6355 days | 27% |
| Alan | 8/10 | 6359 days | 26% |
| Claire | 10/10 | 6366 days | 28% |
| Spyfox | 10/10 | 6387 days | 28% |
| Sonja | 9/10 | 6393 days | 27% |
| Tim | 8/10 | 6400 days | 26% |
| Lorri S | 8/10 | 6405 days | 26% |
| lming60 | 10/10 | 6406 days | 28% |
| melissa | 10/10 | 6406 days | 28% |
| Vincent | 9/10 | 6411 days | 27% |
| Hanna | 5/10 | 6426 days | 9% |
| Henry | 8/10 | 6447 days | 26% |
| Laura | 9/10 | 6464 days | 27% |
| Dave | 9/10 | 6470 days | 27% |
| Anna | 8/10 | 6477 days | 26% |
| S D | 9/10 | 6494 days | 27% |
| Alex Paice | 9/10 | 6505 days | 27% |
| Nikki Gray | 9/10 | 6530 days | 27% |
| Kellie Teichmann | 10/10 | 6581 days | 28% |
| L1z4rd | 9/10 | 6600 days | 27% |
| Allie61 | 10/10 | 6645 days | 28% |
| Adam Richards | 9/10 | 6660 days | 27% |
| Nick | 9/10 | 6666 days | 27% |
| Andria Davis | 9/10 | 6673 days | 27% |
| Georgina Mulligan | 9/10 | 6673 days | 27% |
| catzmagic | 9/10 | 6674 days | 27% |
| Emily Houston | 7/10 | 6677 days | 22% |
| Nancy Dol | 8/10 | 6677 days | 26% |
| John Woodrow | 9/10 | 6681 days | 27% |
| Zara | 10/10 | 6689 days | 28% |
| Ed | 6/10 | 6689 days | 17% |
| Elle | 10/10 | 6689 days | 28% |
| Issy | 7/10 | 6689 days | 22% |
| Katharina | 10/10 | 6692 days | 28% |
| Juliet | 9/10 | 6693 days | 27% |
| paulonline | 10/10 | 6695 days | 28% |
| Marc Hertogs | 7/10 | 6696 days | 22% |
| Ash McNeil | 10/10 | 6696 days | 28% |
| Warren | 8/10 | 6720 days | 26% |
| Klaus | 9/10 | 6728 days | 27% |
| Ann Westmacott | 9/10 | 6754 days | 27% |
| Neil Cooke | 8/10 | 6762 days | 26% |
| Archie Murdoch | 8/10 | 6769 days | 26% |
| Orla | 8/10 | 6770 days | 26% |
| Andy Chapman | 8/10 | 6882 days | 26% |
| JanKovar | 7/10 | 6998 days | 22% |
| Magnus | 8/10 | 7010 days | 26% |
| Lorraine | 8/10 | 7016 days | 26% |
| Dan | 9/10 | 7021 days | 27% |
| Sarah | 8/10 | 7021 days | 26% |
| Richhouse | 8/10 | 7026 days | 26% |
| Emma Gareth | 9/10 | 7032 days | 27% |
| Karen Nellist | 10/10 | 7035 days | 28% |
| beesom | 9/10 | 7046 days | 27% |
| Janne | 7/10 | 7050 days | 22% |
| Frauke | 4/10 | 7052 days | 0% |
| Dave | 10/10 | 7057 days | 28% |
| RosalindBoyes | 7/10 | 7057 days | 22% |
| Hanna | 8/10 | 7058 days | 26% |
| LisaAllen | 10/10 | 7071 days | 28% |
Adjustments
Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.
Sample Size Adjustment
No Adjustment
A reasonable number of reviews are necessary in order for the average to be credible and for an experience to take a prime position within the ranking tables. As such, experiences with only a few reviews have a moderated score. This does not mean that the experience or the reviews can't be trusted. The Skyline Luge Rotorua experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-2.28% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 113 days. However the Skyline Luge Rotorua experience does not meet the criteria for any adjustment.
In addition, an experience's ranking score may be adjusted for each day there is no new ranking. After 1 day the adjustment comes into effect. The maximum number of days that can be adjusted for is 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.
The Skyline Luge Rotorua experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -2.24% |
| 198 | -2.26% |
| 199 | -2.27% |
| 200 | -2.28% |
| 201 | -2.29% |
| 202 | -2.30% |
| 203 | -2.31% |
| … | … |
Balancing Adjustment
1.85% Adjustment
Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.
You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.
We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.
Final Ranking Score
87%
The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.